Class Work 11/25/13. SWBAT to classify an element as a metal, nonmetal, or metalloid based on its properties and location on the periodic table.

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1 Unit 4 NAME Class Work 11/25/ Organization of the Periodic Table SPARK: 1. What are valence electrons? 2. What is the Bohr Model for calcium? 3. Draw the Lewis Dot diagram for Neon ObjecOve SWBAT to classify an element as a metal, nonmetal, or metalloid based on its properties and location on the periodic table.

2 Agenda: Do Now/ObjecOve Quiz Thought Provoker Mini Lesson Classwork Homework

3 QUIZ TIME! 8 minutes!

4 Thought Provoker OBJECT: What are at least two adjecoves you could use to describe the object in front of you? Do you think your object will get hot quickly if put over a flame? Would it be easy to take your object and make other things out of it like tools, pots, cups, etc? Describe two ways that your object is different from another object that your classmates have.

5 Vocab Refresher Which member of group 13 is found in the second period? (1) Be (2) Mg (3) B (4) Al

6 Periodic Table Pass Out! Mendeleev In 1869, Dmitri Ivanovitch Mendeléev created the first the periodic table. Elements were grouped according to their atomic mass. He found that the groups had similar chemical properoes. Blank spaces were lef open to add the new elements he predicted would occur.

7 OrganizaOon of the Periodic Table

8 Metals Metals** are elements that are shiny, solid at room temperature, and good conductors of heat and electricity Examples: Copper (Cu) and Gold (Au)

9 Non Metals Non- metals** are generally gases or dull looking solids. Poor conductors of heat and electricity Examples: Oxygen (O) and Carbon (C)

10 Metallic VS Nonmetallic Proper2es METALS Shiny! Malleable/Bendable Conducts Electricity REACTS w/ ACID Usually SOLID at room temp. (EXCEPTION: Mercury (Hg) is liquid at room temp) Examples: Copper (Cu), Silver (Ag), Platinum (Pt), and Vanadium (V) NONMETALS Dull (NOT shiny) Brittle/Fragile/Breakable Not a conductor of electricity NO REACTION w/ ACID Can be solid, liquid, or gas at room temp. Examples: Sulfur (S), Neon (Ne), Fluorine (F), Iodine (I)

11 Metalloids Metalloids** have physical and chemical properoes of both metals and nonmetals For example: shiny gray solid, reacts with HCl (acid), but DOES NOT conduct electricity Examples: Boron (B), Silicon (Si)

12 TransiOon Metals TransiOon metals** are in groups 3 through 12 Emit energy with frequencies of visible colors

13 Alkali Metals Group #1 (except hydrogen) = alkali metals**. Extremely reacove. Examples: Sodium (Na) in salt Lithium (Li) used in baneries

14 Alkaline Earth Metals Group #2 = alkaline earth metals. Also highly reacove Examples: Calcium (Ca) in milk and muscles Magnesium (Mg) used in computers

15 Halogens Group #17 = halogens Highly ReacOve Examples: Fluorine (F) used in toothpaste Bromine (Br) used in hot tubs

16 Noble Gases Group #18 = noble gases These gases are extremely unreacove. Examples: Used in lasers and light bulbs

17 Movie Time! hnp://educaoon- portal.com/academy/lesson/ the- periodic- table- properoes- of- groups- and- periods.html#lesson

18 Hands up! Most of the elements in the Periodic Table are classified as Metalloids (3) Nonmetals Noble gases (4) Metals Phosphorus is best classified as a Nonmetal (3) Metalloid Metal (4) TransiOon element

19 Classwork Complete 4.5 classwork with your neighbors!

20 Complete 4.5 HW HOMEWORK

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